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EXIN CDFOM Exam Questions
Certified Data Center Facilities Operations Manager (Page 2 )

Updated On: 16-Feb-2026
Page 2 of 13
PDF with 60 Questions

During lock-out/tag-out, which of the below is the most recommended procedure?

  1. Operator locking out the equipment and another operator removing the lock-out
  2. Operator locking out the equipment and the safety manager removing the lock-out
  3. Operator locking out the equipment and the facilities manager removing the lock-out
  4. Operator locking out the equipment and the same operator removing the lock-out

Answer(s): D

Explanation:

In the EPI Facilities Operations Manager body of knowledge, the Lock-Out/Tag-Out (LOTO) procedure is a mandatory safety control to ensure that electrical or mechanical equipment cannot be energized while work is being performed. A core principle emphasized in EPI safety training is:

"The person who applies the lock must be the same person who removes it."

This aligns with international best practices for occupational health and safety, where LOTO ensures that the individual performing maintenance or repair has full control of the energy isolation device.

Why this is required:

Personal Safety Responsibility

The lock identifies the technician directly working on the equipment. Only they can confirm whether work is complete and the area is safe for re-energizing.

Risk Prevention

If someone else removes the lock (another operator, safety manager, or facilities manager), they may incorrectly assume that the equipment is ready to be restored, which can lead to severe injury or fatality.

Compliance With EPI Safety Guidelines

EPI emphasizes the principle of "single-person control" over hazardous energy. No supervisor or colleague may remove another technician's lock unless a formal, documented emergency override procedure is followed -- which is not considered standard practice.

Clear Accountability Chain

LOTO prevents ambiguity or miscommunication. The technician who placed the lock is the only one with full knowledge of the work status and hazards involved.

Why other options are incorrect:

A, B, and C violate the fundamental LOTO rule because they involve someone other than the applying operator removing the lock.

Oversight personnel (safety manager, facilities manager) monitor and audit the process, but they should not remove another person's lock except under rare, emergency, escalation-approved situations.

EPI DCFOM-Aligned Reference Concepts (Paraphrased, Not Verbatim)

LOTO must ensure the isolation device is locked and tagged by the person performing the work.

Only the same individual may remove their own lock.

Removal by another party is only permitted under controlled, documented emergency protocols.

The process prevents accidental energization and protects worker safety.



Which process is not part of the 6-step document management life cycle?

  1. Creation
  2. Publication
  3. Provisioning
  4. Destruction

Answer(s): C

Explanation:

EPI's document management methodology follows a 6-step structured life cycle for all controlled documentation used in a data center (e.g., SOPs, MOPs, EOPs, safety documents, policies, maintenance procedures).

The life cycle ensures all documents remain current, controlled, traceable, and properly retired.

The six recognized stages in the EPI-aligned document management life cycle are typically:

Creation ­ The document is drafted and developed.

Review ­ Subject matter experts verify technical correctness.

Approval ­ Authorized managers approve it for release.

Publication / Release ­ Document is issued for operational use under control.

Maintenance / Updates ­ Regular updates and version control.

Archival / Destruction ­ Retired versions are archived or securely destroyed.

Within this structure, "Provisioning" is not a recognized document life-cycle step in EPI's DCFOM framework.

Provisioning is a term used in IT or service management (e.g., server or user provisioning) but not in document control life cycles.

Therefore, Option C (Provisioning) is the correct answer.

EPI DCFOM-Aligned Reference Concepts (Paraphrased, Not Verbatim)

Document management requires strict version control procedures.

The document life cycle includes creation, review, approval, publication, maintenance, and destruction/archival.

"Provisioning" is not part of the document lifecycle in the EPI framework.



Welding works need to be conducted.

Is a Permit to Work (PTW) required and if so, what type of PTW?

  1. Welding is covered under standard maintenance work, a PTW is not required
  2. A PTW is required for energy work
  3. A PTW is required for cold work
  4. A PTW is required for hot work

Answer(s): D

Explanation:

EPI's Permit to Work (PTW) system categorizes work activities based on risk levels to ensure safe execution and hazard control within the data center.

Welding operations involve open flame, sparks, high heat, molten metal, and ignition sources, making them a high-risk activity.

In EPI safety doctrine, welding is explicitly classified under "Hot Work."

Hot Work includes activities such as:

Welding

Cutting

Grinding

Brazing

Soldering

Flame use or spark-producing tools

Because of the fire ignition potential, a Hot Work Permit is mandatory before welding can begin.

The Hot Work PTW ensures:

Fire watch personnel are assigned

Fire suppression systems are prepared or temporarily disabled with compensating controls

Surrounding area is inspected for combustible material

Correct PPE is used

Hot-work zoning, barriers, and extinguishers are in place

Post-work monitoring is performed

Therefore, Option D (A PTW is required for hot work) is the correct and EPI-aligned answer.

EPI DCFOM-Aligned Reference Concepts (Paraphrased, Not Verbatim)

The PTW system ensures hazardous activities are controlled.

Welding is classified as Hot Work.

Hot Work requires a dedicated PTW with fire-risk mitigation and supervisory approval.



Heavy equipment needs to be moved to another side of the computer room so that the three (3) workers can continue their drilling and cutting off the wall for a new cable tray. Four (4) staff members are required to move the equipment so there is one extra staff member required to assist. The safety manager who is overseeing the works is asked to help moving the equipment.

Is the safety manager allowed to step in and assist with the move?

  1. No
  2. Only when the total weight per person does not exceed the maximum allowed by local regulations
  3. Only if this does not create a security vulnerability
  4. Yes

Answer(s): A

Explanation:

In EPI's safety and statutory requirements framework, the Safety Manager's role is strictly supervisory during ongoing work activities. They are responsible for monitoring, verifying compliance, ensuring safe practices, and intervening only to correct unsafe conditions--not to physically participate in the hazardous task.

Key safety principles include:

Independence of the Safety Function

The Safety Manager must remain impartial and fully observant.

If they participate directly in labor activities (such as lifting equipment), they can no longer maintain oversight of:

ongoing safety compliance worker actions environmental hazards risk escalation

Conflict of Responsibilities

By physically engaging in the task, the Safety Manager becomes distracted and loses supervisory visibility, which introduces risk to the entire operation.

Competency and Authorization Requirements

Personnel assigned to physically move heavy equipment must:

be authorized workers be trained in manual handling have been briefed for the specific PTW-controlled activity

The Safety Manager is not part of the operational lifting team unless specifically assigned beforehand, which is not the case here.

EPI's Supervisory Separation Principle

The safety oversight role must remain dedicated and unbroken during all hazardous or controlled work activities.

Therefore, the Safety Manager must not step in to replace or supplement labor resources.

Correct answer: A -- No.

EPI DCFOM-Aligned Reference Concepts (Paraphrased, Not Verbatim)

Safety oversight must remain independent and uninterrupted.

Safety Manager responsibilities do not include participating in physical hazardous activities.

Supervisory personnel cannot assume operational roles during high-risk work.



What is defined by the Recovery Time Objective (RTO)?

  1. The time within which the impacts of not resuming activities would become unacceptable to the organization
  2. The minimum level of service required to be operational again
  3. The maximum age of the data to be restored in case of a disaster
  4. The prioritized timeframes for resuming disrupted activities at a specified minimum acceptable capacity

Answer(s): D

Explanation:

In organizational resilience and business continuity planning, the Recovery Time Objective (RTO) is a core metric used to determine the acceptable downtime for each business function.

EPI defines RTO as the:

"Targeted duration within which disrupted services or processes must be restored to a minimum acceptable operational level after a disaster."

Key points:

Timeframe for Recovery

The RTO identifies how quickly a facility, system, or service must be restored before the outage causes unacceptable consequences.

Minimum Service Capacity

The RTO refers to restoring operations at a minimum acceptable level, not full normal operations.

Business Impact Analysis (BIA) Output

RTO is derived during BIA where criticality and dependencies of business processes are assessed and prioritized.

Prioritization of Resources

RTO informs disaster recovery planning, resource allocation, and restoration sequencing.

Therefore, the correct definition matches:

D -- "The prioritized timeframes for resuming disrupted activities at a specified minimum acceptable capacity."

Why the other options are incorrect:

A describes the MTPD (Maximum Tolerable Period of Disruption).

B describes elements of the Minimum Business Continuity Objective (MBCO).

C describes the Recovery Point Objective (RPO).

EPI DCFOM-Aligned Reference Concepts (Paraphrased, Not Verbatim)

RTO defines the permitted downtime for a service.

RTO is linked to minimum acceptable capability after recovery.

RTO is determined through BIA.






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